drm/msm/mdss: Add SM6125 support

SM6125 has an UBWC 3.0 decoder but only an UBWC 1.0 encoder.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/548974/
Link: https://lore.kernel.org/r/20230723-sm6125-dpu-v4-11-a3f287dd6c07@somainline.org


Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>